Hydrocarbon-motor



J. G. VINCENT.

HYDROCARBON MOTOR- APPLICATION FILED SEPT. 10, 1915.

Patented May 11, 1920.

2; Qua/4 1% UNITED s'rA'rEs rATENT OFFICE."

JESSE G. VINCENT, or DETROIT, MICHIGAN, ASSIGNOR TO PACKARD MOTORCAR COMPANY, or DETROIT, MICHIGAN, A CORPORATION or MICHIGAN.

HYDROCARBON-MOTOR.

W motors and particularly to oiling systems therefor.

One of the objects of the Invention is to provide means whereby the oil pressure in the oil circulation system will be greatest for a given speed when the throttle valve of the motor is open and less when said valve is closed or partly closed.

Another object is to provide a, spring closedrelief valve in the oil circulation sysi tem together with means for controlling the tension on'said valve.

These and other objects of the invention will appear from the following description taken with the drawings which form apart of this specification, and in which:

Figure 1 is a side elevation and part sectional view of a hydrocarbon motor-embodying the invention;

Fig. 2 is an enlarged sectional view of the valve chamber shown in elevation in Fig. 1.

Referring to the drawings, 10 represents the supporting base or crank case of a hydrocarbon motor, and 11 are the cylinders mounted thereon. 12 is the motor intake manifold which leads to the cylinderbl'oc'ks,

and 13 is a carbureter ofany suitable form and adapted to. supply a. suitable mixture of air and gas to the manifold 12. A throttle valve 14 is arranged in the mixing chamber 15 of the carbureter for controlling the supply of mixture, and a controlling arm 16' and rod .l7 .are,connected to the throttle valve. It will be understood that with the motor running very slowly, or

idling. with the throttle valvenearly cjosed,

there is ahigh vacuum in the intakefmanifold 12, but when the :valve 14 is openedto increase the'speed of the motor, the vacuuminunediately fallsdue to the fact that the intake manifold is then open to'the iatm'os phere through the carbureter.

lVithin the crank caselO the crank shaft 18 mounted in suitable bearings 19, and each of the cranks, 20 ofsaid crank shaft has a Specification of Letters Patent.

Patented May 11, 1920.

Application filed September 10, 1915. Serial No. 49,925.

connecting rod 21 journaled thereon, and connected to a piston sliding in one of the cylinders 11. The crank shaft 18 is shown as drilled to form an oil'conduit 22, and from of the connecting rods 21 through channels '23 formed therein. Oil is fed to the channels" 22 in the crank shaft through suitable cross channels '24: and conduits 25 in the crank case, which conduits are connected with an oil manifold 26, and pipe 27 with a pump 28 located preferably, in the bottom .of the crank case 10 and driven from the motor as by a shaft 29. It will be understood that the pump 28 draws the oil from the bottom of the crank case 10 and supplies it under pressure through the piping and conduits to the conduit 22 of the crank 'this" conduit oil may be fed to the upper ends shaft," and from the crank shaft to' the various bearings above mentioned. It will bejunderstood" also that with the driving I shaft ,29 of the pump connected to be driven by the motor, the pump will su'pplya greater amount "of oil at high speed than at low speed, and the pressure will rise accordingly.

Itis desired to control the maximum pressure in the oil system and for this purpose a relief valve is provided in a casing or chamber 30 shown in elevation in Fig. 1

and in section in Fig. 2. The interior of this casing is connected by a small pipe 81 with the manifold 26 where it joins the pipe 27, as shown particularly in Fig. 2. Inside of the casing 30 is a relief valve 32 which is yieldingly held to its seat by a spring 33 A bypass 34 leads from the lower part of the casing 30* to the crank case I as shown particularly in Figs. 1 and 2. Thus it will be understood that when the oil in the manifold 26 reaches a predetermined pressure, the valve 32 will be raised and some of the oil willbypass through the pi e 31 and bypass pipe 34 back into the cran case 10,

' thus relieving the pressure in the pipe 26.

l The valve 32 is held to its seat by spring 33" the tension. of which may be adjusted qzo-f an abutment 35 the stem of .ithrottle alve 14 is opened and vice versa and consequently the pressure of the oil in the manifold 26 will rise as the Work of the motor is increased. 7

Having thus describedmy invention, what I claim and desire to secure by Letters Patent is 1. In a hydrocarbon motor, in combination, an oil pump, means for leading oil from the pump to the bearings of the motor, an automatic valve in said means for retaining the pressure therein, said valve being adapted to be opened by the pressure in the oil circulating system, means providing an opposing pressure for closing the valve and means controlled by the position of the throttle valve for regulating the pressure of said closing means.

2. In a hydrocarbon motor, in combination, an oil pump, means for leading oil from the pump to the bearings of the motor and including a by-pass for the oil, a valve in said means for retaining the pressure therein, said valve being operable to open the by-pass under the pressure in said means, a spring tending to keep said valve closed, an abutment against Which one end of said spring bears, and means controlled valve operating means for regulating the tension of said spring.

4. In a hydrocarbon motor, the combination With the throttle valve and oil circulating system thereof, of an automatic bypass valve in said system, a spring tending to keep said bypass valve closed, a movable abutment against which one end of said spring bears, means for operating said throttle valve, and means connected to said throttle valve operating means for moving said abutment and thus regulating the tension of said spring.

In testimony whereof I affix my signature.

JESSE G. VINCENT. 

